Quote Originally Posted by Meriachee
New chip blues....

Problem is, when the chip is oriented the other way, the programmer doesn't see it.

Does anybody know what the "proper" orientation of the chip is?


Gary
If the programmer sees the chip with the original orientation, then that is the right way. The regulators can get hot due to the amount of voltage that they have to drop. Try programming it, and see if it works. There should be a little dot at pin "1".
SOT adapters are expensive. I made a cheapo one by cutting a SOT outline on a little piece of PC board with a 5 pin header to match the programmer pins. I put a small bump of solder on all lands associated with the chip pins, then solder the Vss connection only. Next I exert pressure on the chip to gently push the pins against the "bumps". While doing this, I heat the Vdd pin and let it attach to the board. I program and unsolder. I have just soldered a corner pin, and pressed the chip into the board and held while programming. I usually balance a basketball on my nose to raise the level of difficulty, but it is possible :<)

Ron